- “at present, the prototype battery can only hold a very small amount of energy – a few billion electron volts – for a matter of nanoseconds”
- “The key point is that quantum batteries are not about storing a great amount of energy, but about delivering it faster and with greater control”
1 Watt-hour is about 2 × 10²² electron volts. That’s a factor of about 10¹³/2⁴³.
For the sake of an argument, let’s give this tech faster than Moore’s law growth, doubling in charge time and amount of charge every quarter. Then (if my math is right), we’ll have a 1Wh battery (about what an AAA battery stores) that holds its charge for about a day in 10 years.
So, what is this useful for? It can discharge way faster than it gets charged, but don’t we have capacitors for that?
Highly controlled discharging might give it niche applications, but otherwise, I wouldn’t hold my breath for this tech to power “or even your phone?”.
Moore's law doesn't even apply yet because they're still testing tiny individual devices. If this get funding it's going to be way faster at first. Integrating the electronics and putting 2^10 of them on a wafer knocks 10 doublings off the top.
At this point I already have "ad blindness" but towards "traditional news publication declaring some technology revolutionary" — probability of thw mentioned tech being a nothing burger is just getting closer and closer to 100% with every publication.
Comments
FTA:
- “at present, the prototype battery can only hold a very small amount of energy – a few billion electron volts – for a matter of nanoseconds”
- “The key point is that quantum batteries are not about storing a great amount of energy, but about delivering it faster and with greater control”
1 Watt-hour is about 2 × 10²² electron volts. That’s a factor of about 10¹³/2⁴³.
For the sake of an argument, let’s give this tech faster than Moore’s law growth, doubling in charge time and amount of charge every quarter. Then (if my math is right), we’ll have a 1Wh battery (about what an AAA battery stores) that holds its charge for about a day in 10 years.
So, what is this useful for? It can discharge way faster than it gets charged, but don’t we have capacitors for that?
Highly controlled discharging might give it niche applications, but otherwise, I wouldn’t hold my breath for this tech to power “or even your phone?”.
All we have to do is improve it by about 100000000000000000000000000000000000000000000000000000x and it might be able to power a phone for 1 second
Systems such as this might be useful as an in situ energy source you can couple to quantum gates for gate driving.
Moore's law doesn't even apply yet because they're still testing tiny individual devices. If this get funding it's going to be way faster at first. Integrating the electronics and putting 2^10 of them on a wafer knocks 10 doublings off the top.
It's also stores and releases light, not electricity, a bit like luminous paint, less like a battery or a capacitor.
Can it be scaled small enough to replace capacitors in DRAM?
At this point I already have "ad blindness" but towards "traditional news publication declaring some technology revolutionary" — probability of thw mentioned tech being a nothing burger is just getting closer and closer to 100% with every publication.